Open Settings and find the Clock app section

To change your alarm sound, start by opening the Settings app on your iPhone — the gray icon with white gears. Scroll down until you see Sounds & Haptics (on newer iPhones) or Sounds (on older models), and tap it.

Once you're in Sounds & Haptics, look for Alarm in the list. This controls the default sound that plays when any alarm goes off, unless you've set a specific sound for an individual alarm. Tap on Alarm to see your options.

Key Takeaways

  • The default alarm sound is changed in Settings > Sounds & Haptics > Alarm, not in the Clock app itself.
  • You can choose from built-in iPhone alarm tones, or pick any song from your Music library as your alarm sound.
  • Individual alarms can have their own custom sound — tap the alarm in the Clock app and select a different tone without changing your default.
  • If you don't hear your alarm, check that your iPhone is not in Silent mode, because the physical mute switch overrides all alarm sounds.

Choose from built-in alarm tones

When you tap Alarm in Sounds & Haptics, you'll see a list of preset tones with names like Alarm, Beacon, Bells, Chime, and others. Each one plays a short preview when you tap it so you can hear what it sounds like before you commit. The tone you select becomes your new default alarm sound.

These built-in tones are designed to wake you up — they're generally louder and more attention-grabbing than notification sounds. If none of them appeal to you, you can use a song from your Music library instead.

Use a song from your Music library as an alarm

At the top of the alarm tone list, you'll see Pick a song. Tap this option to browse your Music library and choose any song stored on your phone. The alarm will start playing from the beginning of that song when it goes off.

Keep in mind that songs fade in gradually rather than blaring at full volume when ready, so if you choose a quiet song or one with a slow intro, you might sleep through it. Test your choice by setting a short alarm for a few minutes from now and seeing whether it wakes you. If the song is too mellow, pick something with a stronger opening.

Set a different sound for one specific alarm

If you want most of your alarms to use one sound but need a different tone for a particular alarm, you don't have to change your default. Open the Clock app, tap the Alarm tab at the bottom, and find the alarm you want to customize. Tap Edit in the top left corner.

Scroll down to Sound and tap it. You'll see the same list of tones and the option to pick a song. Choose whichever sound you want for that specific alarm only. When you finish editing, tap Save. This alarm will now use its own sound while your other alarms keep the default tone you set in Settings.

Troubleshoot if your alarm doesn't make any sound

The most common reason an alarm is silent is the physical mute switch on the left side of your iPhone. If it's flipped down toward the back of the phone, your iPhone is in Silent mode and alarms won't produce sound — they'll only vibrate. Flip the switch up so the orange indicator is not visible, and your alarm will ring normally.

If the mute switch is already up and your alarm is still silent, check that the volume is turned up. Press the volume up button on the side of your phone, or go to Settings > Sounds & Haptics and drag the Ringer and Alerts slider to the right. Also verify that you actually saved your alarm after setting it — tap the Clock app and confirm your alarm shows in the list with a green toggle next to it.

Why your alarm might not wake you

Even if your alarm is making sound, you might not hear it if the tone is too quiet or too similar to sounds in your environment. Test any new alarm sound by setting it for a few minutes ahead and stepping into another room — you should hear it clearly from a distance. If you sleep deeply or have hearing sensitivity, choose one of the louder built-in tones like Alarm, Beacon, or Siren rather than a song.

Some people find that their brain learns to ignore a familiar alarm sound over time. If you notice you're sleeping through an alarm that used to work, try switching to a different tone every few weeks. You can also set multiple alarms a few minutes apart as a backup, though this defeats the purpose of a single wake-up call.

Frequently Asked Questions

Can I use a ringtone as an alarm sound?

No — alarm sounds and ringtones are separate. You can only choose from the built-in alarm tones or songs in your Music library. If you want a specific ringtone to be your alarm, add that song to your Music library first, then pick it as your alarm sound.

Will my alarm go off if my phone is turned off?

No. Your iPhone must be powered on for an alarm to work. If your phone is off, the alarm will not ring at the scheduled time. Make sure your phone has enough battery and is turned on before you go to sleep.

Does changing the alarm sound affect my timer or reminder sounds?

No. Timers and reminders have their own separate notification sounds, which you can adjust in Settings > Sounds & Haptics under Timer and Reminder. Changing your alarm sound only affects alarms you set in the Clock app.

What if I want different alarms to have different sounds?

Edit each alarm individually in the Clock app. Tap the alarm, select Edit, scroll to Sound, and choose a different tone for that alarm. Each alarm remembers its own sound, so you can have one alarm use a song and another use a built-in tone.

Can I record my own alarm sound?

You cannot record directly into the alarm sound settings. However, if you record a voice memo or song and add it to your Music library, you can then select it as your alarm sound using the Pick a song option.